Table of Contents
Advertisement
Disable
Default TX limit
Default RX limit
Limitation List
Start IP
End IP
TX limit
RX limit
Add
Edit
Delete
Index (1-15) in Schedule
Setup
6
.
5
.
3
Q
u
a
l
i
t
y
o
f
S
e
6
.
5
.
3
Q
u
a
l
i
t
y
o
f
S
e
Deploying QoS (Quality of Service) management to guarantee that all applications receive
the service levels required and sufficient bandwidth to meet performance expectations is
indeed one important aspect of modern enterprise network.
One reason for QoS is that numerous TCP-based applications tend to continually increase
their transmission rate and consume all available bandwidth, which is called TCP slow start.
If other applications are not protected by QoS, it will detract much from their performance in
the overcrowded network. This is especially essential to those are low tolerant of loss, delay
or jitter (delay variation).
Another reason is due to congestions at network intersections where speeds of
interconnected circuits mismatch or traffic aggregates, packets will queue up and traffic can
be throttled back to a lower speed. If there's no defined priority to specify which packets
should be discarded (or in another term "dropped") from an overflowing queue, packets of
sensitive applications mentioned above might be the ones to drop off. How this will affect
application performance?
There are two components within Primary configuration of QoS deployment:
Classification: Identifying low-latency or crucial applications and marking them for
high-priority service level enforcement throughout the network.
function is enabled, please check this box to apply to
second subnet.
Click this button to close the function of limit bandwidth.
Define the default speed of the upstream for each
computer in LAN.
Define the default speed of the downstream for each
computer in LAN.
Display a list of specific limitations that you set on this
web page.
Define the start IP address for limit bandwidth.
Define the end IP address for limit bandwidth.
Define the limitation for the speed of the upstream. If you
do not set the limit in this field, the system will use the
default speed for the specific limitation you set for each
index.
Define the limitation for the speed of the downstream. If
you do not set the limit in this field, the system will use
the default speed for the specific limitation you set for
each index.
Add the specific speed limitation onto the list above.
Allows you to edit the settings for the selected limitation.
Remove the selected settings existing on the limitation
list.
You can type in four sets of time schedule for your
request. All the schedules can be set previously in
Application>> Schedule web page and you can use the
number that you have set in that web page.
r
v
i
c
e
r
v
i
c
e
280
VigorIPPBX 2820 Series User's Guide
Advertisement
Table of Contents
